Tooth-rest.



translata'bly and rotatably carried by the second arm 8, isu capable of being given any position in space relative to the slotted arm 1 so that its head 12 may be brought into any desired relation with the cutter. Pivotedfin this head 12 is a blade prefer'- ably having a'n'oEset tooth rest portion 13, providing the open aperture 14 whereby the tooth rest portion has the shown biurcated form. A stop 15 determines the normal position of the blade 13 and by means of a suitable spring this blade is resiliently maintained in this normal position. l

In use, the attachment is adjusted so that the slotted end of the blade squarely contacts with the advance or radiall face of invention, I claim as new and desire to secure by Letters Patent of the United States 1. 4A tooth rest ofthe nature disclosed combining a slotted arm' adapted to be y mounted on a machine tool and having a block transversely pivote'd to'one'end thereof, a second` mounted on said block at right angles therearm translatably and rotatably with, a third arm translatably and rdtata?- ably attached to a machine tool, an arm having a pivot-retaining head, a thin-V nonresilient 'blade pivotcd in said head and having its free end ladapted to position a. tooth, a stop limiting the movement of said blade about Said pivot, a'spring normally maintainingr said blade against said stop tween Said arm and said member.

3. A tooth rest of the nature disclosed combining a member adapted to be adjustably attached to a machine tool, an arm, a tooth rest blade pivoted on said arm yhnd having a bifurcated extremity, means resiliently normally maintaining said blade in definite relation with said arm, and a universal supporting connection adjustably mounting said arm on said member.

In witness whereof, I hereunto subscribe my name, as attested by the two subscribing witnesses.

ADOLPH L. DE LEEUW.

lVitnesses ALBERT F. NATHAN, OLIVER B. KAISER.

vand a universal supporting connection be- 

